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If no 'a' partition on initial label, create a BSDFFS 'a' partition for the 

default label.  Allows creating an FFS filesystem on an unlabeled disk
without needing to use the RAW partition.  If an RDSK block is found,
reset the default label prior to processing the PART blocks.
This commit is contained in:
mhitch 2006-11-25 18:45:03 +00:00
parent 401e606d0d
commit f12efa62ca
1 changed files with 21 additions and 10 deletions
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31
sys/arch/amiga/amiga/disksubr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: disksubr.c,v 1.50 2006/11/25 18:28:18 mhitch Exp $ */
/* $NetBSD: disksubr.c,v 1.51 2006/11/25 18:45:03 mhitch Exp $ */
/*
* Copyright (c) 1982, 1986, 1988 Regents of the University of California.
@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: disksubr.c,v 1.50 2006/11/25 18:28:18 mhitch Exp $");
__KERNEL_RCSID(0, "$NetBSD: disksubr.c,v 1.51 2006/11/25 18:45:03 mhitch Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -155,17 +155,18 @@ readdisklabel(dev, strat, lp, clp)
lp->d_secpercyl = 0x1fffffff;
lp->d_npartitions = RAW_PART + 1;
for (i = 0; i < MAXPARTITIONS; i++) {
clp->pbindex[i] = -1;
clp->pblist[i] = RDBNULL;
if (i == RAW_PART)
continue;
lp->d_partitions[i].p_size = 0;
lp->d_partitions[i].p_offset = 0;
}
if (lp->d_partitions[RAW_PART].p_size == 0)
lp->d_partitions[RAW_PART].p_size = 0x1fffffff;
lp->d_partitions[RAW_PART].p_offset = 0;
/* if no 'a' partition, default it to copy of 'c' as BSDFFS */
if (lp->d_partitions[0].p_size == 0) {
lp->d_partitions[0].p_size = lp->d_partitions[RAW_PART].p_size;
lp->d_partitions[0].p_offset = 0;
lp->d_partitions[0].p_fstype = FS_BSDFFS;
lp->d_partitions[0].p_fsize = 1024;
lp->d_partitions[0].p_frag = 8;
lp->d_partitions[0].p_cpg = 0;
}
/* obtain buffer to probe drive with */
bp = geteblk((int)lp->d_secsize);
@ -220,6 +221,16 @@ readdisklabel(dev, strat, lp, clp)
}
clp->rdblock = nextb;
/* RDB present, clear disklabel partition table before doing PART blks */
for (i = 0; i < MAXPARTITIONS; i++) {
clp->pbindex[i] = -1;
clp->pblist[i] = RDBNULL;
if (i == RAW_PART)
continue;
lp->d_partitions[i].p_size = 0;
lp->d_partitions[i].p_offset = 0;
}
lp->d_secsize = rbp->nbytes;
lp->d_nsectors = rbp->nsectors;
lp->d_ntracks = rbp->nheads;